anycast scrubbing

Anycast scrubbing is a network traffic mitigation technique used to absorb and filter large-scale distributed denial-of-service (DDoS) attacks. On WindowsForum.com, discussions center on Microsoft Azure DDoS Protection, which leverages anycast-based scrubbing to defend cloud infrastructure. In October 2025, Azure automatically mitigated a record 15.72 Tbps multi-vector DDoS attack traced to the Aisuru IoT botnet, scrubbing traffic across global anycast nodes without customer downtime. The technique distributes attack traffic across multiple data centers, allowing malicious packets to be filtered close to the source while legitimate traffic passes through. Topics include Azure's automated detection, packet-rate and volumetric attack handling, and lessons for enterprise security in 2025.